427725988 has 24 divisors (see below), whose sum is σ = 792348480. Its totient is φ = 201684000.

The previous prime is 427725983. The next prime is 427725989. The reversal of 427725988 is 889527724.

It is a happy number.

It is a super-2 number, since 2×427725988² = 365899041621152288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427725983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37888 + ... + 47863.

It is an arithmetic number, because the mean of its divisors is an integer number (33014520).

Almost surely, 2^427725988 is an apocalyptic number.

It is an amenable number.

427725988 is a deficient number, since it is larger than the sum of its proper divisors (364622492).

427725988 is a wasteful number, since it uses less digits than its factorization.

427725988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85827 (or 85825 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 52.

The square root of 427725988 is about 20681.5373703214. The cubic root of 427725988 is about 753.4513454055.

The spelling of 427725988 in words is "four hundred twenty-seven million, seven hundred twenty-five thousand, nine hundred eighty-eight".